Box mounted dimmer



FIG. 1 is a left perspective view illustrating my new design for a box mounted dimmer;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken line showing of the environment is for illustrative purpose only and forms no part of the claimed design. 

The ornamental design for a box mounted dimmer, as shown and described. 